— Installer Guide · Solar & BESS SCADA
Solar Farm SCADA
4G Antenna Australia
Every solar and BESS site in Australia uses a 4G cellular modem for SCADA monitoring — Teltonika RUT956, Robustel R5020, Sungrow Logger1000, or Huawei Smart Logger. Metal structures, remote locations, and the 3G shutdown create persistent antenna challenges. This guide covers the correct D&G antenna and cable assembly for every configuration.
SMA Female
Most SCADA Modems
Band 28
Regional AU Coverage
IP67
Outdoor Rating
Oct 2024
3G Shutdown
SCADA modem antenna connector reference
| Brand / Model | Connector | MIMO | Notes |
|---|---|---|---|
| Teltonika RUT956 | SMA Female ×2 | Yes (MIMO 2×2) | Australia's most common solar SCADA router. Two SMA Female ports require two SMA Male cable assemblies for MIMO. Supports Band 28 (700 MHz) — critical for regional AU sites. |
| Teltonika RUT986 | SMA Female ×2 | Yes (MIMO 2×2) | Newer RUT956 successor. Same SMA Female dual-port standard. RS232/RS485 serial for Modbus/DNP3 SCADA integration. |
| Robustel R5020 | SMA Female ×2 | Yes (5G MIMO) | 5G dual-SIM router, common at utility-scale solar. SMA Female ports. Two antennas required for 5G MIMO — D&G supplies matched pairs. |
| Sungrow Logger1000 | SMA Female | Single port | Sungrow's solar datalogger with cellular modem. Single SMA Female port for cellular uplink. Direct SMA Male cable assembly to external antenna. |
| Huawei Smart Logger 3000A | SMA Female | Single port | Huawei's solar monitoring unit. Single SMA Female 4G modem port. Common at large commercial and utility solar farms. |
Recommended D&G products for solar SCADA
All antennas cover Band 28 (700 MHz) for regional Australian Telstra/Optus coverage.
DG900MB-HG — 5GNR Broadband Omni
Standard outdoor antenna for solar SCADA sites. Covers Band 28 (700 MHz, Telstra regional), Band 3 (1800 MHz), Band 7 (2600 MHz). Connect to Teltonika RUT956/RUT986 or Robustel R5020 via SMA Male to N-Male pigtail. For high-signal metro-fringe sites: one antenna, single SMA Male cable.
DGY900-6 — Yagi Directional Antenna
For remote solar farms with a single nearby Telstra or Optus tower. 6–11 dBi directional gain pointed at the tower provides the link margin needed at sites where a standard omni delivers RSRP below -110 dBm. Mount on a pole above the inverter rows to clear metal structure interference.
SMA Male to N-Male Pigtail
Connects Teltonika RUT956/RUT986, Robustel R5020, Sungrow Logger1000, or Huawei Smart Logger 3000A SMA Female ports to D&G N-Female external antennas. 30 cm standard for short in-cabinet routing to antenna connector. For longer cable runs, follow with LMR400 N-Male to N-Male extension.
Custom LMR400 Cable Assembly
SMA Male at the modem end (Teltonika/Robustel/Sungrow), N-Male at the antenna end. LMR400 for runs up to 15 m from inverter room or comms enclosure to pole-mounted external antenna. Specify exact site measurement — no joins, full weatherproof assembly. Built from Penrith.
Common installation scenarios
Teltonika RUT956 at a regional solar farm — marginal Telstra coverage
Remote site, RSRP -108 dBm from the nearest Telstra Band 28 tower (typical at 15–25 km). SMA Male to N-Male LMR400 (8 m) from the RUT956's SMA port, up a 5 m steel pole above the inverter row, to an DGY900-6 Yagi pointed at the tower. Effective gain improvement: 8–10 dB, lifting RSRP to -98 to -100 dBm — well into stable data range for SCADA uplink.
Sungrow Logger1000 at commercial rooftop solar — metro fringe
Commercial building rooftop, inverter monitoring via Sungrow Logger1000 with cellular uplink. Single SMA Female port. SMA Male to N-Male LMR400 (5 m) routed up to the rooftop parapet, where an DG900MB-HG omni is wall-mounted in the clear. Away from the inverter structure, RSRP typically improves by 5–8 dB. One cable, one antenna, standard installation.
Robustel R5020 at utility-scale BESS — 5G MIMO
Battery energy storage site with Robustel R5020 5G router. Two SMA Female ports. Two matched SMA Male to N-Male LMR400 assemblies (same length) route to a MIMO dual-port omni at pole height. Both cellular paths receive identical signal at the antenna — MIMO throughput maximised. D&G supplies matched cable pair and dual-port antenna.
3G shutdown legacy SCADA upgrade
Pre-2024 solar sites still running 3G SCADA modems (Telstra 3G shut down October 2024) are now offline. Replacing with a Teltonika RUT956 requires: the router, two SMA Male to N-Male pigtails, and two external antennas. D&G can supply the complete antenna kit — omni pair or Yagi for directional sites — alongside the cable assemblies for a single-order upgrade.
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